Ladder-hook.



Patented' ont. 24, ,1399. c. H. GRANT.

LADDER HOOK.

No. 635,72l.

(No Model.)

Nirnn rArRs CHARLES II. GRANT, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO J OTT GRANT, OF SAME PLACE.

LADDER-HOOK.

SPECIFICATION forming part of Letters Patent No. 635,721, dated October 24, 1899.

Application iiled March 18, 1899. Serial No. 709,696. (No model.)

To all whom t may concern:

Be it known that I, CHARLES H. GRANT, of

Boston, in the county of Suffolk andState of Massachusetts, have invented a new and useful Improvement in Ladder-Hooks, of which the following, taken in connection with the accompanying drawings, is a specification.

My invention relates to a movable hook to be applied to the ends of ladders; and it consists in base-plates rigidly attached to the side rails of the ladder and pivoted arms that may be swung outward, so as to form hooks by which the ladder may be safely connected to any part of a building, tree, &c.

The object is to construct a cheap and etlicient device that can be safely and compactly folded into the plane of the ladder when not in use. This object I attain by the mechanism shown in the accompanying drawings, in

Which- Figure 1 is a view in elevation showing the inner side of one ot' the side rails of a ladder with one of my improved ladder-hooks attached, the hook being represented as turned in. Fig. 2 is the same as Fig. l, except that the hook is shown as swung out for use. Fig. 3 is a vertical section taken on line X X of Fig. 1.

The ladder to which my invention is applied may be of any construction and style. A represents a side rail, and B a base-plate, which is connected to the side rail by screws O O or by any other suitable means. This plate B has at or near its upper end raised lugs D and D.

The hook proper is represented by II and is pivotally connected to the side rail of the ladder and to the base-plate B by a bolt K. This bolt K may be riveted at each end, as shown, or a screw-nut may be used at one end. It desired, the bolt K may not extend through the side rail of the ladder, but simply pass through the base-plate B.

S is a lat latch-spring and is made fast to the hook H by a screw or rivet P. This flat spring has a pin T afiixed to it, the pin being long enough to extend through the hook and into a hole T, made in the base-plate B, (see Fig. 3,) .and thus hold the hook in its folded position when not in use. The pin T also serves to hold the hook in its open position, Fig. 2, by coming in cont-act With the edge of the base-plate B.

The lugs D and D are raised above the plate B to an extent equal to the thickness of the hook H and serve as stops for holding the hook in its place when turned out and ready for use. The lugs D and D and the bolt K constitute a firm and safe support for the hook.

To open the hook, the user takes holdof the coil S of the spring S and drawing it out, as shown :in dotted lines, Fig. 3, frees the hook, and he can then swing it out to the position shown in Fig. 2.

I claiml. A ladder-hook consisting of a base-plate ing lugs, to engage with and hold the hook proper; and a hook pivoted to said plate and supported by the said lugs, substantially as and for the purpose set forth.

2. A ladder-hook consisting of a base-plate having lugs and a pivoted hook adapted to be supported by said lugs when open, and a spring-latch havinga pin adapted to hold said hook in place either open or closed, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 8th day of March, A. D. 1899.

CHARLES' H. GRANT.

attached to the side rail of a ladder and hav- 

